US3722919A - Anti-jackknife device - Google Patents

Anti-jackknife device Download PDF

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Publication number
US3722919A
US3722919A US00205519A US3722919DA US3722919A US 3722919 A US3722919 A US 3722919A US 00205519 A US00205519 A US 00205519A US 3722919D A US3722919D A US 3722919DA US 3722919 A US3722919 A US 3722919A
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US
United States
Prior art keywords
braking
cable
cable drum
drum assembly
axle
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00205519A
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English (en)
Inventor
F Herbert
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Individual
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Individual
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Publication date
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Publication of US3722919A publication Critical patent/US3722919A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D53/00—Tractor-trailer combinations; Road trains
    • B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
    • B62D53/08—Fifth wheel traction couplings
    • B62D53/0871—Fifth wheel traction couplings with stabilising means, e.g. to prevent jack-knifing, pitching, rolling, buck jumping
    • B62D53/0878—Fifth wheel traction couplings with stabilising means, e.g. to prevent jack-knifing, pitching, rolling, buck jumping the fifth wheel coupling incorporating braking or restraining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles

Definitions

  • ABSTRACT The present invention is directed to a braking device separate from the wheel brakes of the vehicle which may be mounted either on the tractor or the trailer and which is subjected to the actuating fluid when the vehicle wheel brakes are applied and which locks with a cable drum and cable when the free end of the cable is connected to the unit of the tractor trailer that a brake device is not connected to which will arrest the horizontal swing of the trailer relative to the tractor before attaining the point of no return at which jackknife results.
  • a braking device separate from the wheel brakes of the vehicle which may be mounted either on the tractor or the trailer and which is subjected to the actuating fluid when the vehicle wheel brakes are applied and which locks with a cable drum and cable when the free end of the cable is connected to the unit of the tractor trailer that a brake device is not connected to which will arrest the horizontal swing of the trailer relative to the tractor before attaining the point of no return at which jackknife results.
  • An object of the present invention is to provide a simple uncomplicated mechanism which may be quickly and economically applied to a tractor trailer combination without necessitating modification to the fifth wheel assembly or the vehicle braking system.
  • a further object of the present invention is an antijackknife device which employs conventional parts such as a brake drum, stator with conventional shoes and a cable drum assembly which has an overrunning engagement with the brake drum in one direction and a lock up in the other direction and which when a jackk-' nife condition begins as when the tractor operator subjects it to a panic stop and one set of wheels on either tractor or trailer lock up will keep the articulated vehicle aligned with the taut cable between the tractor and trailer at a point rearwardly of the fifth wheel.
  • conventional parts such as a brake drum, stator with conventional shoes and a cable drum assembly which has an overrunning engagement with the brake drum in one direction and a lock up in the other direction and which when a jackk-' nife condition begins as when the tractor operator subjects it to a panic stop and one set of wheels on either tractor or trailer lock up will keep the articulated vehicle aligned with the taut cable between the tractor and trailer at a point rearwardly of the fifth wheel.
  • a still further object of the present invention is the provision of an anti-jackknife device which is rugged and simple in construction which does not require constant adjustment and which is virtually weatherproof.
  • FIG. 1 is an underside perspective view of the device of the present invention shown applied to a tractor trailer rig.
  • FIG. 2 is a perspective view of the unit of the antijackknife device which is applied to the underside of the trailer at a point rearwardly of the fifth wheel and kingpin.
  • FIG. 3 is an exploded perspective view of the unit of FIG. 2.
  • FIG. 4 is an inverted perspective view of the cable drum assembly showing its spring operated pawl.
  • FIG. 5 is a vertical section through the assembled units of FIGS. 2 and 3.
  • FIGS. 6 and 7 are diagrammatic views of a tractor trailer rig on which the device of the present invention is installed making a turn from a straightaway.
  • FIG. 8 is a longitudinal section through the spring loaded tractor hitch.
  • a tractor l0 and trailer 11 of a conventional tractor trailer rig are jointed together by the conventional fifth wheel and kingpin assembly (not shown).
  • axle 12 mounted on the underside of the trailer 11, rearwardly of the fifth wheel is an axle 12, to which is secured at its base, the brake assembly bottom plate or stator 13 which carries the conventional brake shoes 14, 15, spring loaded to off position by spring load 16 and which shoes are moved to braking position by actuator cam 17 under control of a pneumatic cylinder and ram device 18.
  • a conventional brake drum 19 Surrounding the brake shoes and riding upon the plate 13 is a conventional brake drum 19 having an annular ring assembly of ratchet teeth 20 secured to its top.
  • the ratchet teeth slope in one direction only.
  • Cooperating with the teeth 20 is a pawl 20A pivoted at 21 and spring loaded at 22 and carried by the underside of a cable drum assembly 23, best seen in FIG. 4.
  • the upper portion of the cable drum assembly 23 has a pair of flanges 24, 25 between which is stored the alignment cable 26, one end of which is secured to lug 27 on top of the top flange 24.
  • the free end of the alignment cable 26 has a pelican hook 28 for attachment through an eye 29 of a spring loaded hitch 30 which has a compression spring 31 within the cylinderical housing 32 which has an attaching bolt 33 which passes through the rear transverse frame member 34 of the tractor 10.
  • the cable 26 is maintained taut by the action of a volute or clock spring 35, one end of which is secured to the axle l2 and the other end of which has a sleeve connection which passes over the upstanding projection 36 carried on the top flange 24 of the cable drum assembly.
  • the clock type spring which controls the cable drum is provided with approximately a pound preloaded pull whilethe spring on the tractor hitch 30 is a compression spring of about ten inches in length which requires at least 2500 pounds to place it in full compression.
  • the tractor l0 and trailer 11 are coupled in the conventional way and with the hitch 30 secured to the rear of the tractor and the assembly of FIG. 2 installed on the trailer rearwardly of the fifth wheel as shown in FIG. 1 the pelican hook 28 is passed through the eye of the spring loaded hitch'30 and the pneumatic operator 18 is connected to the air brake system of the vehicle so that as the brakes are applied to the wheels the two brake shoes 14 and 15 are applied against the inside of the brake drum 19.
  • the pawl 20A locks with the teeth 20 on the brake drum 19 to restrain the cable drum assembly to keep the alignment cable 26 from paying out. Application of the brakes restrains the alignment cable from paying out but will permit the cable drum to rotate in a reverse direction to keep the cable taut under the control of the clock spring 35.
  • volute spring 35 The strength of volute spring 35 is adequate to cause cable drum 23 to keep the cable 26 taut.
  • an anti-jackknife device comprising an axle mounted on one of the elements of said rig a. a brake stator secured to the free end of said axle and having braking elements thereon,
  • ratchet and pawl means one element of which is carried by said complemental braking means and the other element of which is carried by said cable drum assembly for locking said cable drum assembly with said complemental braking means upon rotation in one direction and permitting overrunning rotation between said cable drum assembly and said complemental braking means in the other direction,
  • spring means one end of which is secured to the element of said rig upon which the axle is mounted and the other end of which is secured to said cable drum assembly to maintain the cable between the two elements of the rig taut.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Braking Arrangements (AREA)
  • Braking Systems And Boosters (AREA)
  • Regulating Braking Force (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
US00205519A 1971-12-07 1971-12-07 Anti-jackknife device Expired - Lifetime US3722919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20551971A 1971-12-07 1971-12-07

Publications (1)

Publication Number Publication Date
US3722919A true US3722919A (en) 1973-03-27

Family

ID=22762530

Family Applications (1)

Application Number Title Priority Date Filing Date
US00205519A Expired - Lifetime US3722919A (en) 1971-12-07 1971-12-07 Anti-jackknife device

Country Status (6)

Country Link
US (1) US3722919A (ja)
JP (1) JPS5630219B2 (ja)
CA (1) CA956989A (ja)
DE (1) DE2259989C2 (ja)
FR (1) FR2162508B1 (ja)
GB (1) GB1383010A (ja)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807764A (en) * 1973-02-01 1974-04-30 J Link Anti-jackknifing device
US3857586A (en) * 1973-06-11 1974-12-31 J Mascuch Anti-jackknife device hitch
US4037856A (en) * 1976-05-26 1977-07-26 U-Haul International, Inc. Lateral force limiting coupler assembly
US4452466A (en) * 1982-11-22 1984-06-05 Herbert William B Trailer control device for tractor-trailer vehicles
US4993738A (en) * 1990-01-31 1991-02-19 Bennett Henry E Antijackknife device for towed trailer
FR2665396A1 (fr) * 1990-07-31 1992-02-07 Assier Roger Dispositif d'attelage entre un vehicule tracteur et une remorque.
US5690347A (en) * 1996-04-15 1997-11-25 Tractor Trailer Safety Systems, Inc. Tractor trailer integrated jackknife control device
US20060071446A1 (en) * 2004-10-06 2006-04-06 Impact Engineering Technologies, Inc. Anti-jackknife system
US20200053948A1 (en) * 2018-08-14 2020-02-20 Cnh Industrial America Llc System and method for controlling the position of an agricultural implement by applying a braking force to a wheel of the implement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8425549D0 (en) * 1984-10-10 1984-11-14 Ici Plc Ratchet mechanism
GB2266506A (en) * 1992-04-29 1993-11-03 Norman John Hemingsley Anti-jack-knife device for articulated vehicles
GB9212791D0 (en) * 1992-06-15 1992-07-29 Watkins Robert J "the charlotte"anti theft lock mechanism-series two

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188727A (en) * 1937-06-19 1940-01-30 Harold A Soulis Fifth wheel
DE836599C (de) * 1950-09-07 1952-04-15 Helmut Schmidt Dr Ing Antriebsvorrichtung zum Fortbewegen abgekuppelter Kraftfahrzeuganhaenger
US2691533A (en) * 1950-06-16 1954-10-12 Marshall D Koontz Load-distributing arrangement for tractor-trailer combinations
US2918309A (en) * 1958-03-12 1959-12-22 Cellucci Guido Safety device for trailer-tractors
US3659874A (en) * 1969-01-16 1972-05-02 William L Rendessy Sway control for trailer hitch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1630030C3 (de) * 1967-06-13 1974-08-22 Josef 4000 Duesseldorf Huppertz Vorrichtung zur Stabilisierung eines aus einem Zugwagen und einem mit Auflaufbremse versehenen Anhänger bestehenden Gespannes
DE1780001C3 (de) * 1967-07-20 1975-10-09 Fuji Heavy Industry Ltd. Vorrichtung zum Verhindern des Einknickens von Lastzügen beim Bremsen
GB1183132A (en) * 1968-02-14 1970-03-04 Brd Co Ltd Improvements in Fifth Wheel Couplings for Tractor-Trailer Vehicles
US3592488A (en) * 1969-05-22 1971-07-13 Robert M Holloway Antijackknife device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2188727A (en) * 1937-06-19 1940-01-30 Harold A Soulis Fifth wheel
US2691533A (en) * 1950-06-16 1954-10-12 Marshall D Koontz Load-distributing arrangement for tractor-trailer combinations
DE836599C (de) * 1950-09-07 1952-04-15 Helmut Schmidt Dr Ing Antriebsvorrichtung zum Fortbewegen abgekuppelter Kraftfahrzeuganhaenger
US2918309A (en) * 1958-03-12 1959-12-22 Cellucci Guido Safety device for trailer-tractors
US3659874A (en) * 1969-01-16 1972-05-02 William L Rendessy Sway control for trailer hitch

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807764A (en) * 1973-02-01 1974-04-30 J Link Anti-jackknifing device
US3857586A (en) * 1973-06-11 1974-12-31 J Mascuch Anti-jackknife device hitch
US4037856A (en) * 1976-05-26 1977-07-26 U-Haul International, Inc. Lateral force limiting coupler assembly
US4452466A (en) * 1982-11-22 1984-06-05 Herbert William B Trailer control device for tractor-trailer vehicles
US4993738A (en) * 1990-01-31 1991-02-19 Bennett Henry E Antijackknife device for towed trailer
FR2665396A1 (fr) * 1990-07-31 1992-02-07 Assier Roger Dispositif d'attelage entre un vehicule tracteur et une remorque.
US5690347A (en) * 1996-04-15 1997-11-25 Tractor Trailer Safety Systems, Inc. Tractor trailer integrated jackknife control device
US20060071446A1 (en) * 2004-10-06 2006-04-06 Impact Engineering Technologies, Inc. Anti-jackknife system
US7175194B2 (en) 2004-10-06 2007-02-13 Impact Engineering Technologies, Inc Anti-jackknife system
US20200053948A1 (en) * 2018-08-14 2020-02-20 Cnh Industrial America Llc System and method for controlling the position of an agricultural implement by applying a braking force to a wheel of the implement
US10959365B2 (en) * 2018-08-14 2021-03-30 Cnh Industrial America Llc System and method for controlling the position of an agricultural implement by applying a braking force to a wheel of the implement

Also Published As

Publication number Publication date
CA956989A (en) 1974-10-29
FR2162508A1 (ja) 1973-07-20
DE2259989A1 (de) 1973-06-20
GB1383010A (en) 1975-02-05
JPS4864629A (ja) 1973-09-06
DE2259989C2 (de) 1983-02-24
FR2162508B1 (ja) 1976-08-20
JPS5630219B2 (ja) 1981-07-13

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